How to choose a pump station for suburban water supply device

Providing country-house systemwater has become a prerequisite for a comfortable life. If the site has a private well or a well, a pumping station to give a reasonable and effective solution. Its presence - a guarantee of water supply in the required amount to any domestic point of demand. To choose the best option for your home machine, you should become familiar with its design and operating principles.

In suburban areas, domestic pump stationsis used for the sole purpose - to provide a residential building and the surrounding area with water from the sources of any kind: artificial (well, well) or natural (river, pond). Water is supplied either in special storage tanks, for example, for watering flower beds or garden trees, or directly to the traditional draw-off points - taps, faucets, toilets, gas water heater, washing machine.

medium power stations able to pump 3 m?/ H. Such amount of clean water is enough for a family of 3 or 4 people. Powerful machines can miss 7-8 m³ / h. Power comes from the power (~ 220 V) in manual or automatic mode. Some devices are electronically controlled.

The scheme of installation of the pumping station for a country house on the condition that the water source (well, well) is next to the building

Many gardeners prefer pumping stationbecause of their easy installation and full readiness to work. Protection mechanisms of the human factor also plays an important role. Before choosing a pump station closer look at the mechanisms of operation of which depends on its operation, - pump, and a hydropneumatic tank, and the ability to e-governance.

Construction of pump stations for rural andcountry houses involve the use of surface pumps, differing views of the ejector - internal or external. This choice is based on the location of the tool axis relative to the water surface. Pump capacity is different - from 0.8 kW to 3 kW.

Model selection of a surface pump depends on the depth of the water table in the well

If the depth to which the surface iswater does not exceed 7-8 meters, should stay on models with built-in ejector. Water pumping station with such a device capable of pumping water containing minerals, air, foreign elements to a diameter of 2 mm. In addition to the low threshold of sensitivity they have a high pressure (40 m or more).

Water is supplied through a plastic rigid tubeor reinforced hose, the diameter of which is factory set. The end is immersed in the water, equipped with a check valve. Filter exclude the presence of large particles in water. First pump start-up should be carried out according to the instructions. Part of the hose to the check valve and the internal cavity of the pump are filled with water, filled through a special hole with a cork.

The most popular models with built-in ejector: Grundfos Hydrojet, from the company Jumbo JEELEX, Wilo-Jet HWJ, CAM (Marina).

For boreholes and wells, water mirror whichsituated below 9 meters (and up to 45 m), suitable for water pumping stations equipped with devices with remote ejectors. The minimum diameter of hole - 100 mm. The connecting elements are two tubes.

Installations of this type require particularcareful installation, and careful treatment: the water in excess of the level of impurities or breakdown provoke strainer clogging and equipment failure. But they have another advantage - they are recommended to install if the pumping station is far away from the well, we assume in the boiler or in an additional annex near the house.

To protect the pump station it is set in the back or on the territory of the heated room at home

Many of the characteristics of the pump - durability, noise, price stability - depending on the material of his body, which is:

steel - stainless steel looks beautiful, the water retains the properties intact, but has a high noise level, besides the cost of such devices above;

iron - pleases moderate noise; the only disadvantage - the possibility of rust, so when you select should pay attention to the presence of the protective layer;

plastic - advantages: low noise level, no rust in water, inexpensive cost; lack - a shorter life than that of metal housings.

The scheme of installation of the pump station equipped with a surface pump with external ejector

Composing rating for pumping stationsown garden, be aware of the volume of the expansion tank, which performs several important functions. It helps to regulate the pressure in the water. When you turn on one or more draw-off points of the amount of water in the system is reduced, the pressure drops, and when it reaches the bottom mark (approximately 1.5 bar), the pump will automatically turn on and begin to replenish the water supply. This will occur as long as the pressure is not normalized (to reach the level of 3 bar). The relay reacts to pressure stabilization on and off the pump.

In private houses the volume expansion tankspumping stations depends on the amount of water consumed in the system. The more water consumption - the greater the volume of the tank. If the tank has sufficient volume, and rarely include water, respectively, the pump will also include rare. Bulk tanks are also used as storage tanks for water during a power outage. The most in demand model with the parameters of 18-50 liters. The minimum amount needed when the country is home to one person, and all possible points of the draw are in the bathroom (toilet and shower) and the kitchen (the tap).

Does it make sense to install the equipment with electronic control? To answer this question accurately, you need to consider the advantages of such stations.

Pumping station ESPA TECNOPRES with electronic control has an additional degree of protection

The functions managed by an electronic unit:

prevention of "dry run" - when in the well water level drops, the pump will automatically stop working;

pump responds to the work points of the draw - turns on or off;

indication of pump operation;

preventing frequent switching.

A number of models after the protection function "dry run" to restart water flow standby. Restart different intervals from 15 minutes to 1 hour.

Useful opportunity - a gradual changeRPM motor, which is performed by an electronic speed converter. Thanks to this feature, tap the system does not suffer from water hammer, thus there is energy savings.

The only disadvantage of the models with electronic control - the high cost, so this equipment is not available to all cottagers.

Before you choose the most appropriatepumping station, should carefully study the technical characteristics of the pump, expansion tank and installation conditions - and then the water supply system will work correctly and efficiently.